% slitherlink 54 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/054.a.htm
slitherlink
hard
9 9
.11.3.1..
.3..2..22
....0.20.
..12.223.
2.1......
222.....2
3...23...
..1.2.21.
1.2..22.3
